This skill involves calculating the probability of obtaining either a prime number or a perfect square in a single spin of a spinner with multiple outcomes. The probability is determined by dividing the number of favorable outcomes (here, prime numbers and perfect squares) by the total number of possible outcomes on the spinner.
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Probability of a single spin with multiple outcome options
Test your understanding of probability of a spinner multiple answers by practicing it! Work through the below exercises to use it in practice.
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What is the chance of spinning either a prime number or a perfect square in one spin of this spinner?
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We know that probability is desired outcomes, divided by total outcomes.
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In this case there are 2 primes and one square, for a total of 3 ways to get a desired outcome. There are 6 total outcomes for the spinner
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3 over 6 simplifies to a probability of 1 over 2
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If we want, we can also express this as 0.5 or 50 percent.